End-screw terminal



Dec. 8, 1925- 1,564,802

'H. E. WALKER END SCREW TERMINAL Filed March 19, 1923 To all whom it may concern."

m n-ea Dec. 8, i925. 7

'lUNl TE D' 4 STATES.

i HERBERT WALKER,

PATENT poilee.

or cnrcneo, ILnINoIs' END-SCREW TERMINAL.

Application filed March 19, 1923. Serial No. 622?,951.

Be it known that I, HERBERT E. WALKER, a citizen of the United States, anda residentof Chicago, in the county of Cook and State of Illinois, have invented certainnew and 'useful Improvements in End-Screw Terminals; and I do hereby declare that the following is' a full, clear, and exact description thereof, reference being hadto the'ac- 'companying drawings, and to the characnal cable plugs are axially threaded to thread over lugs or extensions of terminals.

or connectors, and in practice the threaded bores of these plugs vary in diameter. Therefore, when using a terminal or connector fitting which has but a single threaded lug for connection to a cable terminal plug,

V it is necessary to change the terminal or connector fitting when cable terminal plugs of varying screw threaded bores are used. By providing the terminal orconnector fitting with a plurality of lugs of different diameters a single connector or terminal fitting can be used as a universal fitting.

Further objects of the invention are to otherwise improve and simplify storage battery terminal or connector fittings.

The invention consists in the combination and arrangement of the parts shown in the drawings, described in the specification, and is pointed out in the appended claim.

In the drawings:

Figure 1 is a perspective view of an end screw terminal or connector fitting embodying my invention. V

Figure 2 is a side View thereof showing it clamped on a ba tery post and with one of its lugs connected to a cable terminal plug.

As shown in said drawings, 10 desi nates the ring-like body of the connector tting.

It is provided with a through opening usu -ally tapered to fit over the tapered battery 'post 11. The said ring is open at 12 so that it maybe deformed 'under clamping pressure to fit with its inner face in good electrical contact with. the exterior face of the post. Clamping pressure maybe exerted on the ring at the sides of the split or open-.

ing 12 through the medium of arms 13, 13

and a bolt l'which extends through openings at the ends of the arms and across the space between the arms; the head of the bolt bearing against the outer face of one of the arms and the nut '15 of the bolt bearing against the outer face of, the other arm.

The arm 13 against which the bolt head bears is cut away at 16 to provide a shoulder 17 for co-action with the bolt head to prevent the latter from turning when the nut is tightened on the bolt. The inner faces 17'- of said arms are beveled or inclined from the outer ends of the arms to the inner face 18 of the bore of the fittingg'the inner plain This confitting 10 to be wrapped closely about the a post 11 to afford good electrical contact between the parts. t

19, 20 deslgnate lugs which areintegral curved face of the rin li e member of the with and stand outwardl from the outer fitting. Each of said ugs is threaded and adapted to enter and to engage the threaded bores of cable terminal plugs 21, as indicated in Figure 2. Both of said lugs are thickened at their inner ends to provide shoulders 22 to constitute stops against which the inner end faces of the cable terminal plugs abut when assembled with the Said lugs 19, 20 are of different di-. I

ameters to receive cable plugs having differ-' ent diameter threaded bgres. In practice, one of the lugs 19, 20'usually is in diameter, while the other is in diameter.

Thus the arrangement constitutes a universal terminal or connector fitting which is adapted to difierent'standard' cable terminal plugs. So far as this feature of the invention is concerned, the fitting may assume different forms for connection to a battery post or other current-carrying art without departure from the splrit of t e appended claim.

I claim as my invention: An end connector screw terminal for storage battery posts comprising a body having means to detachably fit it to a battery post and to connect it in current carrying engagement with said post, and a plurality of outstanding terminal plug lugs permanently 10 spaced and integral with said body and of =d1fi'erent diameters and havin standard ex ternal screw threads 'adapte to standard. internally threaded terminal plugs.

In witness whereof I' claim the foregoing 15 as my invention I hereunto append my signature this 1st da of March, 1923.

HERB RT E. WALKER. 

